/* 检测智库 样式 */
:root{
    --bg:#0d1117; --bg2:#161b22; --bg3:#1c2330;
    --card:#151c26; --border:#263041; --border2:#31405a;
    --txt:#e6edf3; --txt2:#9aa7b8; --txt3:#6b7889;
    --primary:#3b82f6; --primary2:#2563eb;
    --green:#22c55e; --amber:#f59e0b; --red:#ef4444; --purple:#8b5cf6; --teal:#14b8a6;
    --radius:12px;
}
*{box-sizing:border-box;margin:0;padding:0}
html{-webkit-text-size-adjust:100%}
body{background:var(--bg);color:var(--txt);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","Microsoft YaHei",sans-serif;font-size:14px;line-height:1.6}
a{color:var(--primary);text-decoration:none}
a:hover{color:var(--primary2)}
::-webkit-scrollbar{width:9px;height:9px}
::-webkit-scrollbar-track{background:transparent}
::-webkit-scrollbar-thumb{background:#2c3648;border-radius:5px}
::-webkit-scrollbar-thumb:hover{background:#3b4a63}

/* 导航 */
.nav{background:var(--bg2);border-bottom:1px solid var(--border);position:sticky;top:0;z-index:100}
.nav-inner{max-width:1200px;margin:0 auto;padding:10px 20px;display:flex;align-items:center;gap:16px;flex-wrap:wrap}
.brand{display:flex;align-items:center;gap:8px;font-size:18px;font-weight:600;color:var(--txt)}
.brand-mark{width:30px;height:30px;border-radius:8px;background:linear-gradient(135deg,var(--primary),var(--teal));color:#fff;display:flex;align-items:center;justify-content:center;font-size:16px;font-weight:700}
.brand-text{letter-spacing:.5px}
.nav-search{flex:1;min-width:180px;display:flex;gap:6px}
.nav-search input{flex:1;background:var(--bg3);border:1px solid var(--border);color:var(--txt);border-radius:8px;padding:7px 12px;font-size:13px;outline:none}
.nav-search input:focus{border-color:var(--primary)}
.nav-links{display:flex;align-items:center;gap:4px;flex-wrap:wrap}
.nav-links a,.nav-links span{color:var(--txt2);padding:6px 10px;border-radius:8px;font-size:13px;cursor:pointer}
.nav-links a:hover{color:var(--txt);background:var(--bg3)}

/* 布局 */
.wrap{max-width:1200px;margin:0 auto;padding:24px 20px 60px}
.section{margin-bottom:28px}
.section-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:14px;flex-wrap:wrap;gap:10px}
.section-head h2{font-size:18px;font-weight:600}
.section-sub{color:var(--txt3);font-size:12px}

/* 按钮 */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;border:none;border-radius:8px;padding:8px 16px;font-size:13px;cursor:pointer;transition:all .15s;font-family:inherit}
.btn-primary{background:var(--primary);color:#fff}
.btn-primary:hover{background:var(--primary2)}
.btn-outline{background:transparent;border:1px solid var(--border2);color:var(--txt)}
.btn-outline:hover{border-color:var(--primary);color:var(--primary)}
.btn-ghost{background:transparent;color:var(--txt2)}
.btn-ghost:hover{color:var(--txt);background:var(--bg3)}
.btn-danger{background:var(--red);color:#fff}
.btn-sm{padding:5px 10px;font-size:12px}
.btn-block{width:100%}
.btn:disabled{opacity:.5;cursor:not-allowed}

/* 输入 */
.inp,.textarea{background:var(--bg3);border:1px solid var(--border);color:var(--txt);border-radius:8px;padding:9px 12px;font-size:13px;outline:none;width:100%;font-family:inherit}
.inp:focus,.textarea:focus{border-color:var(--primary)}
.textarea{min-height:120px;resize:vertical;line-height:1.7}
.field-hint{color:var(--txt3);font-size:12px;margin-top:6px}
.auth-error{color:var(--red);font-size:12px;min-height:18px;margin:6px 0}

/* 首页左右布局：左侧领域树 + 右侧内容流 */
.home-layout{display:flex;gap:20px;align-items:flex-start}
.sidebar{width:238px;flex-shrink:0;position:sticky;top:70px;max-height:calc(100vh - 92px);overflow-y:auto;background:var(--card);border:1px solid var(--border);border-radius:var(--radius);padding:14px 12px}
.side-head{margin-bottom:10px;padding:0 6px}
.side-head h2{font-size:16px;font-weight:600;margin-bottom:2px}
.main-col{flex:1;min-width:0}
.tree{display:flex;flex-direction:column;gap:2px}
.tree-node{display:flex;align-items:center;gap:6px;padding:6px 8px;border-radius:8px;cursor:pointer;font-size:13px;color:var(--txt2);transition:background .15s;user-select:none}
.tree-node:hover{background:var(--bg3);color:var(--txt)}
.tree-node.active{background:rgba(59,130,246,.12);color:var(--primary);font-weight:600}
.tree-arrow{width:14px;flex-shrink:0;text-align:center;font-size:10px;color:var(--txt3)}
.tree-arrow.leaf{visibility:hidden}
.tree-arrow.open{color:var(--primary)}
.tree-name{flex:1;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.tree-count{font-size:11px;color:var(--txt3);background:var(--bg3);border-radius:10px;padding:1px 7px;flex-shrink:0}
.tree-node.active .tree-count{color:var(--primary);background:rgba(59,130,246,.12)}
.tree-children{display:flex;flex-direction:column;gap:1px;margin:2px 0 2px 14px;padding-left:10px;border-left:1px solid var(--border)}
.tree-node.sub{font-size:12px;padding:4px 8px}
.side-toggle{display:none}
.side-mask{display:none}
@media(max-width:900px){
    .home-layout{display:block}
    .sidebar{position:fixed;left:0;top:56px;bottom:0;width:254px;z-index:120;transform:translateX(-105%);transition:transform .25s;border-radius:0;border:none;border-right:1px solid var(--border2);max-height:none}
    .sidebar.open{transform:translateX(0)}
    .side-toggle{display:inline-flex}
    .side-mask{display:block;position:fixed;inset:0;background:rgba(0,0,0,.45);z-index:110;opacity:0;pointer-events:none;transition:opacity .25s}
    .side-mask.show{opacity:1;pointer-events:auto}
    .main-col{margin-top:4px}
}

/* 分类 chips */
.cat-chips{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:16px}
.cat-chip{display:inline-flex;align-items:center;gap:6px;background:var(--card);border:1px solid var(--border);color:var(--txt2);padding:6px 14px;border-radius:20px;font-size:13px;cursor:pointer;transition:all .15s}
.cat-chip:hover{border-color:var(--teal);color:var(--teal)}
.cat-chip.active{background:rgba(20,184,166,.12);border-color:var(--teal);color:var(--teal)}

/* 工具条 */
.toolbar{display:flex;align-items:center;gap:8px;flex-wrap:wrap;margin-bottom:16px}
.toolbar .spacer{flex:1}
.sort-tab{background:transparent;border:1px solid transparent;color:var(--txt3);padding:5px 12px;border-radius:8px;font-size:12px;cursor:pointer}
.sort-tab:hover{color:var(--txt)}
.sort-tab.active{color:var(--primary);border-color:var(--primary)}

/* 瀑布流 */
.masonry{columns:3;column-gap:14px}
.masonry-col{display:inline-block;width:100%}
@media(max-width:1000px){.masonry{columns:2}}
@media(max-width:640px){.masonry{columns:1}}

/* 知识卡片 */
.card{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);padding:16px;margin-bottom:14px;cursor:pointer;transition:all .15s;break-inside:avoid;position:relative}
.card:hover{border-color:var(--border2);transform:translateY(-2px);box-shadow:0 6px 20px rgba(0,0,0,.25)}
.c-title{font-size:15px;font-weight:600;line-height:1.5;margin-bottom:8px;color:var(--txt)}
.c-excerpt{font-size:13px;color:var(--txt2);line-height:1.7;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;margin-bottom:10px}
.c-meta{display:flex;align-items:center;gap:8px;flex-wrap:wrap;font-size:12px}
.c-badge{font-size:11px;padding:2px 8px;border-radius:6px;background:var(--bg3);color:var(--txt2)}
.c-badge.ai{background:rgba(139,92,246,.15);color:var(--purple)}
.c-badge.dom{color:var(--teal)}
.c-badge.cat{color:var(--amber)}
.c-tags{display:flex;flex-wrap:wrap;gap:5px;margin-top:8px}
.c-tag{font-size:11px;color:var(--txt3);background:var(--bg3);padding:2px 8px;border-radius:12px}
.c-foot{display:flex;align-items:center;justify-content:space-between;margin-top:12px;padding-top:10px;border-top:1px solid var(--border);font-size:12px;color:var(--txt3)}
.c-like{cursor:pointer;display:inline-flex;align-items:center;gap:4px;color:var(--txt3)}
.c-like:hover{color:var(--red)}
.c-like.liked{color:var(--red)}
.c-score{color:var(--amber);font-size:12px}
.c-owner{position:absolute;top:10px;right:10px;display:flex;gap:4px;z-index:2}
.c-owner button{background:var(--bg3);border:1px solid var(--border);color:var(--txt2);border-radius:6px;width:26px;height:26px;cursor:pointer;font-size:12px}
.c-owner button:hover{color:var(--red);border-color:var(--red)}
.c-ai-note{font-size:11px;color:var(--purple);background:rgba(139,92,246,.08);border:1px dashed rgba(139,92,246,.4);border-radius:6px;padding:4px 8px;margin-top:8px}

/* 空态 */
.empty-hint{text-align:center;color:var(--txt3);padding:60px 20px;font-size:14px}
.empty-hint a{color:var(--primary)}

/* 加载 */
.load-more{text-align:center;padding:20px;color:var(--txt3);font-size:13px}
.loading{text-align:center;padding:30px;color:var(--txt3)}

/* 弹窗 */
.modal-mask{position:fixed;inset:0;background:rgba(0,0,0,.6);z-index:200;display:flex;align-items:center;justify-content:center;padding:20px}
.modal-box{background:var(--bg2);border:1px solid var(--border2);border-radius:16px;width:100%;max-width:560px;max-height:85vh;overflow-y:auto;padding:20px}
.modal-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:14px}
.modal-head h3{font-size:16px}
.modal-x{cursor:pointer;font-size:22px;color:var(--txt3);line-height:1}
.modal-x:hover{color:var(--txt)}

/* 详情页 */
.detail-wrap{max-width:860px;margin:0 auto}
.detail-head{margin-bottom:16px}
.detail-title{font-size:24px;font-weight:700;line-height:1.5;margin-bottom:10px}
.detail-meta{display:flex;align-items:center;gap:14px;flex-wrap:wrap;font-size:13px;color:var(--txt3);margin-bottom:8px}
.detail-content{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);padding:24px;font-size:14px;line-height:1.9;white-space:pre-wrap;word-break:break-word}
.detail-content h1,.detail-content h2,.detail-content h3{margin:14px 0 8px;font-size:16px}
.detail-content ul,.detail-content ol{padding-left:22px;margin:8px 0}
.detail-content p{margin:8px 0}
.detail-actions{display:flex;gap:10px;align-items:center;margin:16px 0;flex-wrap:wrap}
.detail-box{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);padding:18px;margin-top:16px}
.detail-box h4{font-size:14px;margin-bottom:12px;color:var(--txt2)}
.att-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(140px,1fr));gap:10px}
.att-item{border:1px solid var(--border);border-radius:8px;overflow:hidden;background:var(--bg3)}
.att-item img{width:100%;height:110px;object-fit:cover;display:block}
.att-item .att-name{font-size:11px;color:var(--txt2);padding:6px 8px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.att-item.video img{height:90px}
.att-item .att-dl{display:block;text-align:center;font-size:11px;padding:4px;background:var(--bg2);color:var(--primary)}

/* 关联图谱 */
.graph-box{display:flex;flex-wrap:wrap;gap:8px}
.graph-node{background:var(--bg3);border:1px solid var(--border2);border-radius:20px;padding:6px 12px;font-size:12px;color:var(--txt2);cursor:pointer;transition:all .15s;position:relative}
.graph-node:hover{border-color:var(--primary);color:var(--primary)}
.graph-node.rec{border-style:dashed;border-color:rgba(139,92,246,.5);color:var(--purple)}
.graph-node .rel{position:absolute;top:-8px;left:8px;font-size:10px;background:var(--bg2);padding:0 4px;border-radius:4px;color:var(--txt3)}

/* 表单 */
.form-card{background:var(--card);border:1px solid var(--border);border-radius:16px;padding:26px;max-width:520px;margin:30px auto}
.form-card h2{font-size:19px;margin-bottom:18px;text-align:center}
.form-row{margin-bottom:14px}
.form-row label{display:block;font-size:13px;color:var(--txt2);margin-bottom:6px}
.form-row .row2{display:flex;gap:10px}
.form-row .row2>*{flex:1}
.form-foot{text-align:center;font-size:13px;color:var(--txt3);margin-top:12px}
.ai-classify{background:rgba(59,130,246,.06);border:1px dashed rgba(59,130,246,.4);border-radius:10px;padding:12px;margin-top:10px;font-size:12px;color:var(--txt2);display:none}
.ai-classify b{color:var(--primary)}

/* 我的 */
.me-profile{display:flex;align-items:center;gap:16px;background:var(--card);border:1px solid var(--border);border-radius:var(--radius);padding:20px;margin-bottom:18px}
.me-avatar{width:56px;height:56px;border-radius:50%;background:linear-gradient(135deg,var(--primary),var(--teal));display:flex;align-items:center;justify-content:center;font-size:24px;font-weight:700;color:#fff}
.me-name{font-size:17px;font-weight:600}
.me-sub{font-size:12px;color:var(--txt3);margin-top:4px}
.me-stats{display:flex;gap:10px;margin-top:10px;flex-wrap:wrap}
.me-stat{background:var(--bg3);border-radius:8px;padding:6px 14px;font-size:12px;color:var(--txt2)}
.me-stat b{color:var(--txt);font-size:15px;margin-right:4px}
.me-tabs{display:flex;gap:6px;margin-bottom:16px}
.me-tab{background:transparent;border:1px solid var(--border);color:var(--txt2);padding:7px 16px;border-radius:8px;font-size:13px;cursor:pointer}
.me-tab.active{background:var(--primary);color:#fff;border-color:var(--primary)}
.path-card{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);padding:14px 16px;margin-bottom:10px;display:flex;align-items:center;justify-content:space-between;gap:10px}
.path-name{font-weight:600;font-size:14px}
.path-desc{font-size:12px;color:var(--txt3);margin-top:2px}

/* 后台 */
.admin-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:12px;margin-bottom:20px}
.admin-stat{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);padding:16px}
.admin-stat .n{font-size:26px;font-weight:700}
.admin-stat .l{font-size:12px;color:var(--txt3)}
.admin-tabs{display:flex;gap:6px;margin-bottom:18px;flex-wrap:wrap}
.admin-tab{background:transparent;border:1px solid var(--border);color:var(--txt2);padding:7px 14px;border-radius:8px;font-size:13px;cursor:pointer}
.admin-tab.active{background:var(--primary);color:#fff;border-color:var(--primary)}
.table{width:100%;border-collapse:collapse;font-size:13px}
.table th{text-align:left;color:var(--txt3);font-weight:500;padding:8px 10px;border-bottom:1px solid var(--border);font-size:12px}
.table td{padding:8px 10px;border-bottom:1px solid var(--border);vertical-align:top}
.table tr:hover td{background:var(--bg3)}
.chip{display:inline-block;padding:2px 8px;border-radius:6px;font-size:11px}
.chip.pending{background:rgba(245,158,11,.15);color:var(--amber)}
.chip.published{background:rgba(34,197,94,.15);color:var(--green)}
.chip.rejected{background:rgba(239,68,68,.15);color:var(--red)}
.bar-row{display:flex;align-items:center;gap:10px;margin-bottom:6px;font-size:12px}
.bar-row .bn{width:110px;color:var(--txt2);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.bar-row .bar{flex:1;height:10px;background:var(--bg3);border-radius:5px;overflow:hidden}
.bar-row .bar i{display:block;height:100%;background:linear-gradient(90deg,var(--primary),var(--teal));border-radius:5px}
.bar-row .bv{width:40px;text-align:right;color:var(--txt3)}

/* 隐藏通道 */
.secret-dot{position:fixed;right:14px;bottom:14px;width:14px;height:14px;border-radius:50%;background:rgba(139,92,246,.14);cursor:pointer;z-index:150;transition:all .2s}
.secret-dot:hover{background:rgba(139,92,246,.5);transform:scale(1.4)}
.secret-tools{display:flex;gap:8px;align-items:center;flex-wrap:wrap;margin-bottom:12px}
.secret-count{font-size:12px;color:var(--txt3);margin-left:auto}
.secret-list{display:flex;flex-direction:column;gap:10px;max-height:48vh;overflow-y:auto}
.secret-item{background:var(--card);border:1px solid var(--border);border-radius:10px;padding:12px;cursor:pointer;transition:border-color .15s}
.secret-item:hover{border-color:var(--border2)}
.secret-item.sel{border-color:var(--primary);background:rgba(59,130,246,.08)}
.secret-item .s-t{font-weight:600;font-size:13px;margin-bottom:4px}
.secret-item .s-c{font-size:12px;color:var(--txt2);max-height:60px;overflow:hidden;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;white-space:pre-line}
.secret-item .s-c.s-open{max-height:none;-webkit-line-clamp:unset;display:block;overflow:visible}
.secret-item .s-exp{font-size:11px;color:var(--primary);margin-top:4px;cursor:pointer;user-select:none}
.secret-item .s-exp:hover{text-decoration:underline}
.secret-item .s-m{font-size:11px;color:var(--txt3);margin-top:6px;display:flex;gap:8px;flex-wrap:wrap}

/* toast */
.toast{position:fixed;top:70px;left:50%;transform:translateX(-50%);background:var(--bg2);border:1px solid var(--border2);color:var(--txt);padding:10px 22px;border-radius:10px;font-size:13px;z-index:300;opacity:0;transition:opacity .25s;pointer-events:none;box-shadow:0 8px 24px rgba(0,0,0,.35)}
.toast.show{opacity:1}
.toast.error{border-color:var(--red);color:var(--red)}

/* 页脚 */
.footer{background:var(--bg2);border-top:1px solid var(--border);text-align:center;padding:26px 20px;color:var(--txt3);font-size:12px}
.footer-sub{margin-top:6px;font-size:11px}

/* 响应式 */
@media(max-width:640px){
    .nav-inner{gap:10px}
    .nav-search{order:3;flex-basis:100%}
    .detail-title{font-size:20px}
    .detail-content{padding:16px}
    .form-card{margin:16px auto;padding:20px}
}